Strong Atmospheric River Bringing Heavy Rain to the Pacific Northwest; Areas of Snow in the North-Central and Eastern U.S.
A strong atmospheric river will bring prolonged heavy rainfall along with gusty winds to the Pacific Northwest through much of this week. The heavy rainfall may lead to widespread urban and river flooding. Accumulating snow is expected over parts of the central Appalachians and Mid-Atlantic today as well as the Upper Midwest and the Upper Great Lakes this evening into Tuesday. Read More >
| NWS Forecast for: Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm (ANZ254) Issued by: National Weather Service Norton, MA Last Update: 405 PM EST Mon Dec 8 2025 |  |
Tonight: N winds 15 to 20 kt with gusts up to 25 kt, diminishing to 10 to 15 kt after midnight. Seas 4 to 6 ft. Wave detail: N 5 ft at 7 seconds and E 2 ft at 9 seconds. Tue: NW winds 5 to 10 kt, becoming SW 10 to 15 kt in the afternoon. Seas 2 to 4 ft. Wave detail: N 3 ft at 6 seconds and E 1 foot at 9 seconds. Tue Night: S winds 15 to 20 kt, becoming SW 20 to 25 kt after midnight. Gusts up to 30 kt. Seas 2 to 4 ft, building to 4 to 6 ft after midnight. Wave detail: SW 3 ft at 4 seconds and NE 2 ft at 5 seconds, becoming SW 5 ft at 5 seconds and NE 1 foot at 5 seconds. A chance of rain. Wed: SW winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 30 kt. Seas 4 to 6 ft. Wave detail: SW 6 ft at 6 seconds and E 1 foot at 9 seconds. A chance of rain in the afternoon. Wed Night: SW winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft, except 9 to 12 ft S and E of nantucket. Wave detail: SW 6 ft at 6 seconds and SE 1 foot at 9 seconds. A chance of rain. Thu And Thu Night: W winds 20 to 25 kt. Seas 5 to 7 ft. Wave detail: S 6 ft at 10 seconds and NW 5 ft at 5 seconds. Fri: W winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Fri Night: W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft. A chance of rain. Sat: W winds 20 to 25 kt. Seas 4 to 6 ft, except 7 to 10 ft S and E of nantucket. A chance of rain and snow. Sat Night: W winds 20 to 25 kt. Seas 5 to 7 ft. A chance of snow and rain. seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height. | |
| Zone Forecast: Coastal waters from Provincetown MA to Chatham MA to Nantucket MA out 20 nm (ANZ254) | |
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